possible virus???

I'm getting a "Windows Internet Security" popup randomly in my browsers.
It's been happening in the last week or so.

First it only started in google chrome, now it's happening in safari. I have VMware fusion installed but haven't launched it in quite a while. I just restored both my internal HDs with snow leopard install disks.

Sounds like a pop up ad. It's presuming you're using Windows and is trying to get you to go a site for one nefarious reason or another. It may be trying to get you to download a virus, but no Windows virus will affect your Mac.

Most routers have a reset button that reverts them back to the original factory settings. It's usually a tiny button recessed inside a small hole on the back. You push it with the end of a paperclip. Resetting should undo whatever harmful changes were made. Be aware that you'll also lose any settings that you made when you initially setup the router. It will be exactly like it was it was when you first unwrapped it. You have have to configure it again.

Well, judging by the fact that you are not alone, I doubt it was somebody on your network. It probably broke your router's password by brute force attack using something that behaves like THC hydra or Brutus but attempts to log into your router instead.

OK folks... This is malware and has nothing to do with a virus for Mac or a router infection.

This Malware attacks windows machines by tricking people to click on it as it looks like it found viruses on your machine. The user then clicks the "fix it" icon and the program is downloaded and installed on the machine. It then sets the computer policies to block the user from opening control panel or killing the service which continually asks the user to pay to remove it.

More than likely the sites that you are visiting are infected and not your machine. As long as you don't install anything when it asks you, you will be ok.

Yes, it's a scareware ad, but if you click the link on the Apple Support site and read you'll see that it is a DNS redirect if you actually follow the link. Just play it safe, don't click things that are blatant fakes, and you'll be fine.